The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 1999
Filed:
Jun. 09, 1997
Applicant:
Inventor:
Terutake Kadohara, Kanagawa-ken, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
396296 ; 396121 ;
Abstract
A viewfinder display device comprises a viewfinder optical system and a display structure disposed to be superimposed on a viewfinder optical image in the viewfinder optical system, and the display structure is arranged to divide a viewfinder display area into a plurality of small areas and is capable of selectively varying a transmittance of each of the plurality of small areas.